For the last week I've had the feeling like my period was going to start.. that PMS-like cramp really low. It doesnt get any better or worse, stays pretty constant. I feel like I just need a heating pad or something! At night, its always more noticible and is accompanied by some back ache. I experience BH throughout the day (have since 25wks with PTL) but no particular pattern. I had my peri appt last week and mentioned it to her, they didnt seem too concerned since my cervix, although "short", hasn't changed in the last few weeks and is still closed. Just wondering if anyone else is having the constant dull pain..